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Q. Solvay process is used in the manufacture of

EAMCETEAMCET 2010

Solution:

Solvay process is used in the manufacture of sodium carbonate, $Na _{2} CO _{3} .$
This process involves following reactions.
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The sodium bicarbonate obtained on heating gives sodium carbonate.
$NaHCO _{3} \stackrel{\Delta}{\longrightarrow } Na _{2} CO _{3}+ H _{2} O + CO _{2}$
Note This process cannot be used in the manufacture of potassium carbonate as potassium bicarbonate is soluble in the solution of $NH _{4} Cl$ and KCl.